CN209669625U - Concrete Overlays pitch longitudinal joint processing construction - Google Patents
Concrete Overlays pitch longitudinal joint processing construction Download PDFInfo
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- CN209669625U CN209669625U CN201920323685.1U CN201920323685U CN209669625U CN 209669625 U CN209669625 U CN 209669625U CN 201920323685 U CN201920323685 U CN 201920323685U CN 209669625 U CN209669625 U CN 209669625U
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- longitudinal joint
- pull rod
- concrete
- plate
- pitch
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- 239000004567 concrete Substances 0.000 title claims abstract description 72
- 238000010276 construction Methods 0.000 title claims abstract description 24
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- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 20
- 239000002689 soil Substances 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
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- 235000013339 cereals Nutrition 0.000 description 5
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- 239000003292 glue Substances 0.000 description 4
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- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
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- 239000011384 asphalt concrete Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Road Paving Structures (AREA)
Abstract
The utility model relates to a kind of processing of Concrete Overlays pitch longitudinal joint to construct, and belong to highways and urban roads engineering field, in particular to the Concrete Overlays pitch construction that prevents longitudinal joint reflection crack.It is made of stress relieving grooving, pull rod, geonet, stress relieving grooving is longitudinally disposed along concrete road surface longitudinal joint, pull rod is arranged laterally at a spacing on longitudinal joint, and the plate of concrete road surface longitudinal joint two sides is pulled, prevents plate from sliding laterally, stress relieving grooving filled bitumen mixture, the pitch thickness at longitudinal joint is thickeied, prevents the upward reflecting finish of longitudinal joint from crack occur, geonet is arranged under asphalt surface course, as stress absorbing layer, enhance the effect of Anti-reflective Crack of Overlaying.When Concrete Overlays pitch is transformed, to concrete road surface longitudinal joint consolidation process, prevents the sliding of road surface plate from Laying Asphalt Surface Course being caused reflection crack occur, reduce the generation of Asphalt Pavement Damage after transformation.
Description
Technical field
The utility model relates to a kind of processing of Concrete Overlays pitch longitudinal joint to construct, and belong to highways and urban roads work
The construction that journey field, in particular to Concrete Overlays pitch prevent longitudinal joint reflection crack.
Background technique
Urban road and highway structure mainly have rigid cement concrete pavement and bituminous pavement flexible.Concrete road
Face is since construction technology is simple, and compared with bituminous pavement, concrete pavement construction does not need large-scale asphalt mixing, decking and rolling
Equipment can only construct by small-sized machines such as concrete mixer, vibrating head, plate vibrators, non-professional road construction team
5 can also build, and the last world 80, the nineties, some counties and townships, China have built many cement concrete pavements.Concrete road surface
With the advantages that big bearing capacity height of rigidity, durability, heat-resisting quantity are strong, and bending tensile strength is high, antifatigue, and the service life is long.Coagulation
There is also some defects, concrete to generate creep under the influence of temperature for soil surface, is easy to appear contraction fissure, mixes in order to prevent
The solidifying irregular contraction fissure of soil, it is artificial that longitudinal construction joint and lateral joint-cutting are set in concrete pavement construction, cause road surface
Poor flatness, driving comfort level is low, and driving noise is big, and seam areas purt mud, faulting of slab ends easily occurs and gnaws side, and road surface running vehicle is caused to run
The disadvantages of winnowing with a dustpan.And the advantages that bituminous pavement has flatness good, and driving is comfortable, and road reflection glare is small.In recent years, with economy
The requirements such as the driving comfort level of road, urban landscape are continuously improved in development, people, and pitch is overlayed on existing cement-concrete pavement,
Using original concrete road surface as roadbed, the way for being transformed into bituminous pavement is generally used, and is commonly called as road " white change black ".
Prior art remodeling concrete road surface, is the work net that first spreads a layer of clay on existing cement-concrete pavement, for preventing coagulation
Soil surface seam and crack reflection cause Reflection Cracks Produced in Asphalt Pavement, this method is in concrete road surface to asphalt surface course
Base stablizes, and plate stitch does not occur when serious disrepair phenomenon being effective.The longitudinal joint of concrete road surface is that construction formwork pours
The construction joint of concrete is built, for the ease of road surface drainage, road generally has 1%~2% horizontal slope, concrete road surface structure thickness
Uniform thickness, basis, which also has, needs to be arranged pull rod with the consistent horizontal slope of concrete topping, concrete road surface longitudinal joint, and pull rod is using with ribbing
Reinforcing bar is commonly called as screw-thread steel, is arranged on the concrete plate of longitudinal joint two sides, prevents concrete plate horizontal sliding.In those early years construct
Concrete road surface also have to lower cost and do not set pull rod.Some are provided with pull rod, but the rib line of pull rod there was only 0.5~
1mm only leans on cement mortar with concrete anchoring, and in plate sliding, mortar cannot resist sliding force, and pull rod and concrete anchor
Failure；Template is not easy to remove when also having construction, and construction personnel moves pull rod, and concrete strength also not up to designs strong when demoulding
Degree, the anchoring of pull rod and concrete is disturbed, loses anchor force, and over time, horizontal sliding occurs in concrete road surface.In this feelings
Under condition, if Laying Asphalt Surface Course is only not take antiskid measure, after overlaying pitch, longitudinal joint is opened to the processing of the longitudinal joint cementation of fissures
Asphalt surface course can be reflexed to quickly by splitting, and it is also of no avail to have overlayed geonet immediately.Concrete Overlays pitch, after several years,
Original road surface longitudinal joint and transverse joint reflection crack more or less can all occur, this is that Asphalt Concrete Overlay is common
Common fault.If the longitudinal joint of plate sliding is without handling, after Laying Asphalt Surface Course, asphalt surface course shortly will appear larger obtain
Crack, asphalt surface course is damaged at longitudinal joint therewith.It therefore, should be first vertical to concrete road surface when carrying out concrete road surface transformation
Gap-like condition is investigated, and should carry out consolidation process, then Laying Asphalt Surface Course if there is biggish plate stitch.
Summary of the invention
The purpose of this utility model is: providing a kind of Concrete Overlays pitch longitudinal joint processing construction, by stress relieving grooving, draws
Bar, geonet composition, stress relieving grooving is longitudinally disposed along concrete road surface longitudinal joint, and pull rod is arranged laterally at a spacing on longitudinal joint, by coagulation
The plate of soil surface longitudinal joint two sides pulls, and prevents plate from sliding laterally, stress relieving grooving filled bitumen mixture, thickeies the drip at longitudinal joint
Green thickness prevents the upward reflecting finish of longitudinal joint from crack occur, and geonet is arranged under asphalt surface course, as stress absorbing layer,
Enhance the effect of Anti-reflective Crack of Overlaying.It has the advantage that: preventing the sliding of road surface plate from making concrete road surface longitudinal joint consolidation process
There is reflection crack at Laying Asphalt Surface Course, reduces the generation of Asphalt Pavement Damage after transformation.
The utility model is realized by the following technologies: a kind of Concrete Overlays pitch longitudinal joint processing construction, main
It to be made of stress relieving grooving 1, pull rod 2, geonet 3, stress relieving grooving 1 is longitudinally disposed along concrete road surface longitudinal joint 5, pull rod
2 are arranged laterally at a spacing on longitudinal joint 5, and the plate 4 of 5 two sides of concrete road surface longitudinal joint is pulled, and prevent 4 water of plate
Smooth dynamic, geonet 3 is arranged on plate 4, asphalt cutting optimal 6 on geonet 3, and upper layer 7 is spread
It is located on cutting optimal 6.
The stress relieving grooving 1 is to cut the v-depression of the formation of plate 4, the angle α of groove in the two sides of longitudinal joint 5
It is 60~120 °, the depth h of groove is the thickness of 1/2~1/3 plate 4, is filled and 6 same particle size of cutting optimal in groove
Asphalt, grinding compacting and 4 either flush of plate thicken the pitch thickness at longitudinal joint 5, prevent reflection crack.
For the pull rod 2 using 14~20 millimeters of diameter of reinforcement fabrication, both ends are right angle crotch, 5 two sides plate 4 of longitudinal joint
It is each to bore a hole, it is pull rod slot 8 between two holes, the depth of pull rod slot 8 is greater than 2 diameter of pull rod, and the crotch of pull rod 2 inserts in the hole, and draws
Bar 2 is embedded in pull rod slot 8, and pull rod 2 is lower than 4 top surface of plate, and the setting spacing L of two pull rods 2 is 30~80 centimetres.
The geonet 3 is bidirectional glass fiber TGXG, and mesh is that 6 asphalt maximum of cutting optimal is broken
1~1.5 times of stone grain diameter, bidirectional stretch intensity are 30~60kN/m.
When the utility model is constructed, first concrete road surface longitudinal joint is investigated, it is larger to longitudinal joint width, there is plate cross
It is handled to the longitudinal joint of sliding.Concrete edge is cut off along longitudinal joint 5, forms stress relieving grooving 1, then along longitudinal joint not every 30~80 lis
Rice one of pull rod 2 of setting, the specific with good grounds sliding degree of spacing, which calculates, to be determined, is bored on plate 4 according to the crotch position of pull rod 2
Hole is cut into pull rod slot 8, and hole and slot are removed completely, pull rod 2 is inserted in the hole, and fills closely knit, epoxy with epoxy resin mortar
After resin mortar solidification, bituminous concrete is filled in stress relieving grooving 1, steamroller is adopted and rolls bituminous concrete and plate
4 either flush of block is laid with geonet 3 on plate 4, then distinguishes asphalt cutting optimal 6 and upper layer 7 again.
Detailed description of the invention
Fig. 1 is the utility model floor map；
Fig. 2 is longitudinal joint ruggedized construction figure；
Fig. 3 is stress relieving grooving cross-sectional view (the A-A section of Fig. 1)；
Fig. 4 is that cross-sectional view (the B-B section of Fig. 1) is arranged in pull rod；
Perspective view is arranged in Fig. 5 pull rod.
In figure: 1- stress relieving grooving, 2- pull rod, 3- geonet, 4- plate, 5- longitudinal joint, 6- cutting optimal, 7- upper layer, 8- pull rod
Slot.
Specific embodiment
In order to which those skilled in the art more fully understand the utility model, the utility model is made into one in conjunction with FIG. 1 to FIG. 5
The explanation of step, the content that embodiment refers to not are the restriction to the utility model.
The utility model is started with from longitudinal joint anti-skid construction is reinforced, and pull rod is anti-skidding and stress absorption crack control measures using adding,
Reduce the generation of Asphalt Pavement Damage after being transformed.Concrete Overlays pitch longitudinal joint processing construction, mainly by stress relieving grooving 1,
Pull rod 2, geonet 3 form, and stress relieving grooving 1 is longitudinally disposed along concrete road surface longitudinal joint 5,2 lateral separation cloth of pull rod
It sets on longitudinal joint 5, the plate 4 of 5 two sides of concrete road surface longitudinal joint is pulled, prevent the horizontal sliding of plate 4, geonet
3 are arranged on plate 4, and asphalt cutting optimal 6 on geonet 3, upper layer 7 is laid below cutting optimal
On layer 6.Fig. 1 is seen in the plan-position that pull rod 2 is arranged, and longitudinal joint ruggedized construction figure is shown in Fig. 2.
Stress relieving grooving 1 is to cut the v-depression of the formation of plate 4 in the two sides of longitudinal joint 5, the angle α of groove is 60~
120 °, the depth h of groove is the thickness of 1/2~1/3 plate 4, and 1 cross-sectional view of stress relieving grooving is shown in that Fig. 3, Fig. 3 are that the A-A of Fig. 1 is cutd open
Face.When construction, blade angle is adjusted using the cutting machine of adjustable blade tilt angle in the two sides of longitudinal joint to be treated
It is in 30~60 ° with 4 surface of plate, it is 60~120 ° that two sides, which cut off 1 angle α of stress relieving grooving,.It is suitable according to the angle Selection of blade
Lower cutter position, blade is switched to the deep-controlled thickness in 1/2~1/3 plate 4 at longitudinal joint 5, after the edges of boards of two sides are all cut,
The concrete cut away is cut, stress relieving grooving 1 is formed.
Using 14~20 millimeters of diameter of reinforcement fabrication pull rod 2, both ends are right angle crotch, and crotch is suitable for reading away from stress relieving grooving 1
Edge is preferably greater than equal to 10 centimetres, to guarantee that concrete has enough tensile strength.It is counted according to 20 centimetres of anticracking groove width, railing
Length is 40 centimetres, and hook portion length takes 5~10 centimetres.According to shown in Fig. 1, symmetrically indulged on the plate 4 for cut stress relieving grooving 1
5 two sides are stitched, an anchor hole is respectively bored using impact drill, 40 centimetres of pitch-row, hole depth should be greater than hook length, uses and cuts between two holes
Cutting mill cuts out pull rod slot 8, and depth is greater than 2 diameter of pull rod, cuts concrete and forms pull rod slot 8, the setting spacing L of two pull rods 2
It is 30~80 centimetres, the specific with good grounds sliding degree of spacing, which calculates, to be determined.Residue in hole is removed completely using air compressor,
Anchor hole is inserted with epoxide-resin glue, 2 both ends crotch of pull rod also uniformly smears epoxide-resin glue, and the crotch of pull rod 2 is inserted into anchor
Solid hole, extra epoxide-resin glue are extruded, and closely knit, pull rod 2 is filled using epoxy resin mortar in the gap around hole draw-in bar 2
It is embedded in pull rod slot 8, also closely knit with epoxy resin mortar filling around 8 pull rod 2 of pull rod slot, pull rod 2 is lower than 4 top surface of plate, ring
It can carry out next step operation after oxygen resin primary solidification, general 2~3 hours.Pull rod setting cross-sectional view is shown in that Fig. 4, Fig. 4 are figures
1 B-B section cuts stress relieving grooving 1 and sets the perspective view of pull rod 2 and sees Fig. 5.
It is filled in stress relieving grooving 1 using bituminous concrete identical with cutting optimal 6, it is mixed that middle grain formula AC-20 pitch can be used
Solidifying soil, should be higher than that 4 top surface of plate when filling out, reserve empty paving height, ground using bituminous concrete of the road roller to stress relieving grooving 1
Pressure, is generally rolled 2~4 times, makes the bituminous concrete and 4 either flush of plate of stress relieving grooving 1, and stress relieving grooving 1 fills asphalt,
The pitch thickness at longitudinal joint 5 has been thickeied, reflection crack can be effectively prevented.The geonet 3 on whole picture concrete road surface upper berth, soil
Work net 3 is bidirectional glass fiber TGXG, and mesh is the 1~1.5 of 6 bituminous concrete maximum ballast grain sizes of cutting optimal
Times, the earth grille of 25.4 × 25.4mm of aperture of common specification can be used, bidirectional stretch intensity is 30~60kN/
m.It is viscous using included glue and concrete road surface after earth grille has self-adhering type and non-self-adhering type, self-adhering type to be laid with
It closes, using non-self-adhering type earth grille, needs at spacing intervals to follow closely grid in concrete road using cement nail
On face.
The spread bonding oil on the road surface for completing geonet 3, bonds 0.3~0.6 kg/m of oily dosage2.Pave cutting optimal 6,
Grain formula AC-20 bituminous concrete in use can be used in cutting optimal 6, pave and reserve empty paving height, using road roller to having paved
Cutting optimal 6 is rolled, and is generally rolled 6~8 times, checks compactness, can pave upper layer 7 after meeting the requirements.Pave upper layer 7
Preceding spread spread bonding oil, bonds 0.3~0.6 kg/m of oily dosage2.Pave 7 asphalt of upper layer, and upper layer 7 can be used
Grain formula AC-16 bituminous concrete or MSA-13 asphalt-mastic-broken stone in pave and reserve empty paving height, using road roller pair
The layer that the upper surface of paves is rolled, and is generally rolled 6~8 times, checks compactness, can open to traffic after meeting the requirements.
Using the utility model treated Concrete Overlays pitch, pull rod limits plate sliding, sets at longitudinal joint
Stress relieving grooving is set, bituminous texture thickness is larger, in addition setting geonet can effectively prevent longitudinal joint to reflex to drip as stress absorption
Green surface layer, the disease for reducing Concrete Overlays pitch generate.
Claims (4)
1. a kind of Concrete Overlays pitch longitudinal joint processing construction, it is characterized in that: mainly by stress relieving grooving (1), pull rod (2), soil
Work net (3) composition, stress relieving grooving (1) is longitudinally disposed along concrete road surface longitudinal joint (5), and pull rod (2) is arranged laterally at a spacing in longitudinal joint (5)
On, the plate (4) of concrete road surface longitudinal joint (5) two sides is pulled, the horizontal sliding of plate (4) is prevented, geonet (3) is arranged in plate
On block (4), asphalt cutting optimal (6) on geonet (3), upper layer (7) is laid on cutting optimal (6).
2. Concrete Overlays pitch longitudinal joint processing construction according to claim 1, it is characterized in that: the stress relieving grooving
It (1) is to cut the v-depression of plate (4) formation in the two sides of longitudinal joint (5), the angle α of groove is 60~120 °, the depth of groove
H is the thickness of 1/2~1/3 plate (4), fill in groove with the asphalt of cutting optimal (6) same particle size, grinding compacting with
Plate (4) either flush thickeies the pitch thickness at longitudinal joint (5), prevents reflection crack.
3. Concrete Overlays pitch longitudinal joint processing construction according to claim 1, it is characterized in that: the pull rod
(2) 14~20 millimeters of diameter of reinforcement fabrication is used, both ends are right angle crotch, and longitudinal joint (5) two sides plate (4) respectively bores a hole, two
It is pull rod slot (8) that the depth of pull rod slot (8) is greater than pull rod (2) diameter, and the crotch of pull rod (2) inserts in the hole, pull rod between hole
(2) in insertion pull rod slot (8), pull rod (2) is lower than plate (4) top surface, and the setting spacing L of two pull rods (2) is 30~80 centimetres.
4. Concrete Overlays pitch longitudinal joint processing construction according to claim 1, it is characterized in that: the geonet
It (3) is bidirectional glass fiber TGXG, mesh is 1~1.5 times of cutting optimal (6) asphalt maximum ballast grain sizes, double
It is 30~60kN/m to tensile strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323685.1U CN209669625U (en) | 2019-03-14 | 2019-03-14 | Concrete Overlays pitch longitudinal joint processing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323685.1U CN209669625U (en) | 2019-03-14 | 2019-03-14 | Concrete Overlays pitch longitudinal joint processing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209669625U true CN209669625U (en) | 2019-11-22 |
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ID=68571631
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920323685.1U Expired - Fee Related CN209669625U (en) | 2019-03-14 | 2019-03-14 | Concrete Overlays pitch longitudinal joint processing construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN209669625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176817A (en) * | 2020-08-20 | 2021-01-05 | 中冶天工集团有限公司 | Method for treating cracks of base panel of road reconstruction project |
| CN113323442A (en) * | 2021-06-10 | 2021-08-31 | 中国十九冶集团有限公司 | Method for treating upper crack of fabricated floor slab |
-
2019
- 2019-03-14 CN CN201920323685.1U patent/CN209669625U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176817A (en) * | 2020-08-20 | 2021-01-05 | 中冶天工集团有限公司 | Method for treating cracks of base panel of road reconstruction project |
| CN113323442A (en) * | 2021-06-10 | 2021-08-31 | 中国十九冶集团有限公司 | Method for treating upper crack of fabricated floor slab |
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Granted publication date: 20191122 |